Firefox Support Forum

i installed updated version of mozilla and after login i lost all the previous data and i also tried it to recover from my last backup but it's not working please help me with that i need my data back

I'm having the exact same problem as what was originally mentioned in this post from 4 years ago.

The "chosen solution" was to exit firefox through the hamburger menu, which I find to be absolutely ridiculous. You mean to tell me that even though I close EVERY OTHER APPLICATION either using the "X" close button or a custom keybinding that I've set for my own personal convenience, firefox requires me to exit through a menu every time in order to make it behave the way I've told it to? No. Absolutely not. If I tell firefox that I don't want it to save my last session, that means I DON'T WANT IT TO SAVE MY LAST SESSION. If I've deselected the "open previous windows and tabs" option in the settings, then under no circumstances should it be trying to open my previous windows and tabs.

I've tried the suggestion to change the value of browser.sessionstore.max_resumed_crashes from 1 to 0. The problem persists, I assume because firefox considers being closed using the close button to be a "crash", which is interesting.

I the other suggestion further down in the thread was to set browser.sessionstore.resume_from_crash from true to false, which will prevent firefox from recovering a session from a crash. This is hardly an appropriate solution. I want firefox to resume my last session if there is a legitimate (key word LEGITIMATE) crash, because my session was closed against my will due to something that went wrong. Being able to recover my last session in such a situation is nice. I do not, however, want firefox to resume my last session when I explicitly closed the last session myself, which would be the difference between a crash recovery and restoring a previous session. If no crash occurred, I don't need a crash recovery, and aside from a crash, I don't want my previous session to be restored.

Are there any solutions to this at all? Because this is one of the biggest reasons why I stopped using firefox. I want to come back to firefox because everything else that's worth using is either dog shit, or Chromium-based (i.e. also dog shit). However, I find this broken feature to be somewhat of a security issue. If a bad actor somehow gains access to my system, I don't want him to be able to open firefox and have access to my last browser session because I closed firefox using a keyboard shortcut instead of closing it through a goddamned menu.

Firefox 120.0 on openSUSE Tumbleweed.

Google Maps (https://www.google.com/maps) results in CPU being pegged at 100%. No other tabs open. All I have to do is load the URL and do nothing else. This behavior is repeatable. CPU stays at 100% until tab is closed or browser is shut down. Sometimes the browser will hang and its PID has to be killed.

Offending process:

username 4501 4416 76 11:40 ? 00:05:13 /usr/lib64/firefox/firefox -contentproc -childID 1 -isForBrowser -prefsLen 27513 -prefMapSize 244227 -jsInitLen 228948 -parentBuildID 20231116134553 -greomni /usr/lib64/firefox/omni.ja -appomni /usr/lib64/firefox/browser/omni.ja -appDir /usr/lib64/firefox/browser {659a1e89-c5da-416d-b720-558c24187847} 4416 true tab

I am using the latest version of Firefox on Linux Mint. I've had some flash on opening issues that I've been unable to permanently prevent. Suddenly my adblock software is not working. I tried uninstalling, reinstalling, different adblocks-no improvement. No extension software is showing on my toolbar and selecting the extensions software just brings up a suggested extensions.

I don't remember with which version of Firefox for Linux this issue started; but I cannot play multiple videos at once. If I open two tabs with video sources one of the videos will automatically pause if I start watching the second one.

I have tried disabling my add-ons but the issue persists and I don't think there should be any reason for any of them interfering with videos.

Currently running Firefox 120.0 (64-bit - Arch Linux)

I wanted to make a lengthy post on a website today, but I accidentally hit CTRL + R twice which bypassed the "This page is asking you to confirm that you want to leave — information you’ve entered may not be saved." safety net. Is there a way to deliberately disable any and all refresh shortcuts and buttons when a safety net shows up, so my buttery fingers don't ruin my day to it's absolute maximum?

I want safety nets to be deliberately annoying.

I currently have a Windows 7 PC with Firefox version 112.0.2 and normally use the EXE files from Mozilla's FTP site (ftp.mozilla.org/pub/firefox/releases) to upgrade Firefox.

With Mozilla's decision to move Windows 7 users on to the ESR branch of Firefox I was looking for the best way to install the ESR version using EXE/MSI files. In this regard I have the following questions:

1) Is it best to first install the standard Firefox 115.0.3 EXE (last standard Firefox for Windows 7 users) and then the 115.1.0 EXE (first Windows 7 ESR Firefox)?

2) Would doing the above method cause any conflictions?

3) I read a while ago that the ESR version is a separate install that can run in parallel to the standard version, if this is true would it be ok to uninstall the standard version after the ESR install to not leave vulnerable versions on the system?

4) As the latest ESR version is 115.5.0, if the above method is ok. After installing the standard 115.0.3 should I still install 115.1.0 ESR or move straight to 115.5.0 ESR?

5) When moved onto the ESR branch can you jump versions or do the updates have to be installed in order?

Firefox has crashed repeatedly when I've switched tabs to my gmail in the past ~15 minutes. It happens in "troubleshooting mode" as well. I'm running firefox on a linux computer, and my ubuntu installation and firefox are both up to date.

Here's my crash id: bp-b079d597-fb83-4a69-ab65-896370231129

Hello, I have a very odd problem with my firefox browser. I am running firefox 88 64bit on a 16.04 (I know...) Ubuntu. On certain websites, I have an issue with interactive content: www.leboncoin.fr will not let me login anymore (quite recent) www.decathlon.fr will have trouble displaying user comments, images, let alone placing an order Now and then websites with dynamic content and forms will not load...

I am not sure what is the link between all these but it seems related. I have tried the troubleshoot mode but it does not change anything. At the moment when I need to use these king of website I have to switch to another browser.

Thanks in advance for your help!

Hi, I have a weird problem, I have 3 systems on my device: windows(10), ubuntu and Arch lately when i was configuring Firefox on fresh arch install I was annoyed that I needed to re-login to every single s...t again. So I thought "Why can I just share the same FF profile between systems" Long story short it didn't work on Arch. I was forced to compile FF from source and now it works... but when I'm logged in on Ubuntu and trying to launch FF from GNU I always see this error. it's working when i point out to profile from the command line with "-p <dir>". but even then when I go to about:profiles and click "launch in new browser" it's still pooping with this error. So Am I doing something wrong or it is just impossible to do this seamlessly? is there a better(correct?) way to achieve the same functionality?

thanks for reading, ill humbly take any advice.

EDIT: I have copied the profile's folder to a separate partition which is auto mounted tried it on Ubuntu (at this time it had been working just fine) and after using it on Arch when I was back on Ubuntu it was displaying this error

My apologies if I am being a numpty, but I have been using Firefox for many years without issue, and recently (possibly after an update, but I cannot be certain), it has started to randomly freeze. I am running Ubuntu 22.04, and Firefox 119.0. I have demonstrated to myself that if I open a web page with links (but not always), and click on the link, I may still scroll up and down the page, but the mouse cursor never seemed to recognise the hotlink, and doesn't jump to it. The links will work on Chromium. I initially tried resetting the browser, thereby losing all my open pages, but that didn't work. That also removed all extensions ("all" two of them) and that didn't work. Firefox is now pretty much unusable. Any help to resolve this would be appreciated, as I cannot find any solutions online, and it seems I am not alone with this issue! Many thanks,

Hello! I have been inspired to customize Firefox to make it look like version "4" from this reddit post!

One of the things that I cannot find is how to get the old Firefox 4 icons. Is there an official site that has them or should I search or the source code of Firefox from version 4?

Yo, Linux sysadmin here and been using Firefox forever.  Surprisingly I have this ancient 12 year old System76 laptop that I use for nearly everything (got a newer Lenovo that I been meaning to switch to but no time).

Using Debian 12/13 with Gnome 43.6/X11.  Can't quite figure out this issue though.  Besides being a sysadmin, can have other side jobs/projects going on as well, so can have 5-10 windows open in different workspaces, sometimes with hundreds of tabs all together (big fan of the Auto Tab Discard add-on and about:memory Minimize Memory Usage to keep performance up and resource usage low).

Been noticing this issue for the last few versions where suddenly, after random amount of Firefox uptime (can be after days of perfect performance) my keyboard input aka typing gets extremely laggy, like 30 seconds behind for all keystrokes, except: Ctrl-F instantly brings up the Find in Page bar, and Ctrl-C instantly copies to clipboard.  Ctrl-V, however, 30 seconds lag, Ctrl-A also....  Mouse is fine though and can right-click and paste instantly or use other menu options.  Happens anywhere in Firefox too: in address bar, in the find text box, in the preferences, in my saved passwords, haven't found a place with no lag.

Have searched around for some hours now and only found suggestions to disable accessibility service, but accessibility service has already been disabled for a while now.  Everything else in my Gnome desktop session is running fine.  Restarting Firefox temporarily solves the issue but is highly annoying and interruptive with as much as I have going on sometimes.  Due to timing randomness, starting Firefox without certain add-ons is impossible as I can't spend days at a time without any of them.  Just have to open a text editor and type what I need to in there, then paste with mouse, until I can find a good stopping place to restart Firefox.

Have included most of the info from about:support in the Troubleshooting Information.  Spent quite a bit of time looking at all my modified preferences, nothing popped out but if there's something you think I could include to help, let me know. Thanks

I have an issue with the address bar in private windows. Normally when you click on the search bar in the new tab page, it will redirect the cursor to the address bar instead of letting you use the search bar.

I found the following solution on the forum here that works for normal windows: go to the about:config page and set browser.newtabpage.activity-stream.improvesearch.handoffToAwesomebar to false.

For private windows, this fix does not work. It will still go to the address bar instead of letting you use the search bar. Is there another way for me to fix this so that it will also work in private windows?

I use a VPN connection to access my workplace. This means that all my DNS queries MUST go through the company's VPN tunnel.

Firefox is deliberately blocking my work. The DNS over HTTPS "feature" does not work over this VPN connection.

In Firefox, there was previously the following setting: Preferences > General > Network Settings > Enable DNS over HTTPS

I REALLY NEED to have this setting restored right now.

I am running Mozilla Firefox on two laptops each of which is running Ubuntu Linux 22.04 LTS. In both cases Firefox is installed by the Debian/Ubuntu 'snap' program.

On the first of these two machines -- the only less frequently used or updated -- "About Mozilla Firefox" shows that I am running:

Firefox Browser 118.0.2 (64-bit) Mozilla Firefox Snap for Ubuntu canonical-002-1.0

On this machine I see this on the command-line:

Calling: '$ ls -ltr /snap/slack' shows that the current 'snap' is 113, created Nov 1. The date on the symlink between '/snap/slack/current/ and '113' is Nov 9, suggesting that I was prompted to run 'snap' and upgrade Firefox on Nov 9.

On this first machine, Firefox is performing as intended.

On the second machine, however, a more recent version of Firefox is blurring photos on at least one important website. (As far as I can tell, all other rendering of web pages is satisfactory.) The information on the second machine is:

Firefox Browser 120.0 (64-bit) Mozilla Firefox Snap for Ubuntu canonical-002-1.0

From this machine's command-line:

$ ls -ltr /snap/firefox total 0 drwxr-xr-x 7 root root 201 Nov 6 18:34 3358 drwxr-xr-x 7 root root 201 Nov 16 17:34 3416 lrwxrwxrwx 1 root root 4 Nov 23 21:37 current -> 3416

This suggests that Ubuntu build build 3416 on Nov 16 and that I was prompted to install it on Nov 23. That's 2 days before I am writing this bug report, and that duration is roughly the duration in which I have observed this blurring problem.

The problem occurs at this website:

https://www.washingtonpost.com/

On this page, the photos are all in sharp focus and everything else is being rendered as expected. See: Screenshot from 2023-11-25 17-02-46.png

However, if I right-click on any URL or photo on the home page to take me to the page for a specific article, I get a blurred photo. Example:

https://www.washingtonpost.com/health/2023/11/25/zoom-fatigue-brain-heart-effects/

Note how blurry this photo is. See: Screenshot from 2023-11-25 17-03-39.png

This blurriness does *not* happen with the older version of Firefox on my first machine. My inference is that there was some change between 118.0.2 and 120.0 that is failing to correctly process data coming from this website. Suggestions?